pub async fn query_crypto_order_fees(
backend: &BackendConn,
acc_id: u64,
trd_cache: &TrdCache,
order_ids: &[String],
) -> Result<Vec<CryptoOrderFeeInfo>>pub async fn query_crypto_order_fees(
backend: &BackendConn,
acc_id: u64,
trd_cache: &TrdCache,
order_ids: &[String],
) -> Result<Vec<CryptoOrderFeeInfo>>